/Engine/Source/Runtime/AssetRegistry/Public/AssetRegistry/AssetRegistryState.h
Clears existing referencers of the given Category(s) and assigns the input Referencers. Gives an error if any elements of Referencers are outside of the Category(s).
void SetReferencers ( const [FAssetIdentifier](API\Runtime\CoreUObject\AssetRegistry\FAssetIdentifier) & AssetIdentifier, TConstArrayView< [FAssetDependency](API\Runtime\AssetRegistry\AssetRegistry\FAssetDependency) > Referencers, [UE::AssetRegistry::EDependencyCategory](API\Runtime\CoreUObject\Misc\UE__AssetRegistry__EDependencyCa-) Category )